Develop Bugs

[SOLVED]Can't get 4g or 3g. Only E.

I fixed it by flashing a new ROM and wiping all the data!

Someone please help! I don't know what to do!

Nevermind, I think I fixed it!

I fixed it by changing the band to GSM Preferred/GSM ALL but now I only get E. Any way I can get back 4g?

Change it back to automatic or Odin kl1 modem from rootzwiki team kang post.
DaAwesome1 said:
I fixed it by changing the band to GSM Preferred/GSM ALL but now I only get E. Any way I can get back 4g?
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chib1panda said:
Change it back to automatic or Odin kl1 modem from rootzwiki team kang post.
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Click to collapse
I changed it to auto, and i'm getting signal. Time to check if 4g. Thanks.
EDIT: It shows signal, but Im not getting any. Can't send text or browse web. Time to odin modem.

I flashed it, and I went to settings and looked at the network mode: It was GSM only. I changed it to auto mode. It seems to still get and send texts, and I looked at band selection with the dialer code, and there wasn't a star besides anything. I think it might've worked, but I still only get e.

By flashed I mean odined. Lol
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I tried changing it to automatic in the band selection menu, and it showed signal, but texts didn't send.
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Also, if it means anything, I can't change it to wcdma only in settings.
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Can anyone help?
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If anyone helps me get it fixed TONIGHT, I will try to donate a few dollars to them.
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I had same issue and this is how I fixed it.
disable data connection and switch your phone off, remove the back cover and remove sim card completely. Then re-insert sim card and turn your phone back on and it should ask you to re-enable data connection once it boots up.
let me know if this helps

media_11 said:
I had same issue and this is how I fixed it.
disable data connection and switch your phone off, remove the back cover and remove sim card completely. Then re-insert sim card and turn your phone back on and it should ask you to re-enable data connection once it boots up.
let me know if this helps
Click to expand...
Click to collapse
I did this, but it didn't ask me to turn it back on, so I turned it on manually, and still only E.
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Other phones receive 3G? Perhaps T-Mobile is servicing your area? This has happened to me but I had no control over it.

iLeopard said:
Other phones receive 3G? Perhaps T-Mobile is servicing your area? This has happened to me but I had no control over it.
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Click to collapse
It had 4g earlier today, plus my dad's T989 has 4g here
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Delete and re-add apn?
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Did you by any chance flash a rom port?
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Weird. My issue was that I was testing a few of the skyrocket modems. After using Odin to get kl1 it worked again. Yeah i would sugeest resetting apn in wireless settings .
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Here's what I did that messed with my 3G
I flashed skyrocket roms.
So what I did was wipe everything. Go to mounts and storage and format system. Then flash Juggernaut or any other rom you desire. Then you're done
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WiFi that won't stay off

Anyone else having trouble with there WiFi not turning off? I turn mine off, lock my screen and then the next time I unlock my phone the WiFi is back on.
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JArcher84 said:
Anyone else having trouble with there WiFi not turning off? I turn mine off, lock my screen and then the next time I unlock my phone the WiFi is back on.
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Sprint automatic connection, under mobile network/auto connect uncheck it.

Ok thanks man. Does you phone go into roaming a lot? Mine does, I had the OG Evo and it was never a problem but this new phone seems like it's always in roaming. I have already done a PRL update multiple times.
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JArcher84 said:
Ok thanks man. Does you phone go into roaming a lot? Mine does, I had the OG Evo and it was never a problem but this new phone seems like it's always in roaming. I have already done a PRL update multiple times.
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I turned my roaming off, you should try and changing your modem.

WiFi turns off by itself

Got my sgs3 Sunday and when I got home turned on WiFi and started playing with it I notice that I lose network for a second after about 15 mins and my WiFi icon on the status bar disappear but network comes back on .. but in settings it is greyed out and I can't turn it off then back on till I reboot 0_o...thought maybe after I rooted and flash AOKP it would be fixed but no! I'm on T-Mobile and AOKP..so is it a bad WiFi driver or...? Any ideas?

#*0011# press the menu key. Select wifi. uncheck wifi power saver mode. Its should be green when on black off. Make sure its not on and done go back to home screen. Your phone should reboot the wifi driver and your done.
This method works for 4.0.4 any of the roms. Cm10 doesn't work. Cm9 haven't tried but I'm sure it'll work for u.
Hit the thanks if I've helped!
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When I do #*0011# it says invalid mmi code
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DroidRC1 said:
When I do #*0011# it says invalid mmi code
I'm on AOKP jelly Bean build
Click to expand...
Click to collapse

JB has these wifi issues I was expiriencing the same problems on cm10 as well. (I know not the same but both are jb) I decided to downgrade to the intrigue rom r3. It has smooth transitions. Real buttery and it let me access the wifi power saver mode by down ng the method above. I'll look into aokp and see if I can find a fix for u.
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hucesar1017 said:
JB has these wifi issues I was expiriencing the same problems on cm10 as well. (I know not the same but both are jb) I decided to downgrade to the intrigue rom r3. It has smooth transitions. Real buttery and it let me access the wifi power saver mode by down ng the method above. I'll look into aokp and see if I can find a fix for u.
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K thanks
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does aokp have a setting like i think TW has where if the wifi signal is too weak it will use network instead?
its called avoid bad connections on cm10

duhitsrandy said:
does aokp have a setting like i think TW has where if the wifi signal is too weak it will use network instead?
its called avoid bad connections on cm10
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Click to collapse
Yes and I've unchecked that... I'm using WiFi fixer and that has seemed to fix my issued
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DroidRC1 said:
When I do #*0011# it says invalid mmi code
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Because it's *#0011#
The guy told you wrong #*0011#

Oh yeah my bad. *#0011# is the correct code.(typo) still don't work on cyanogen mod
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Thanks guys but it doesn't work for AOKP...and my stock backup is for cwm
And I have twrp now
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For anyone who has already turned off WiFi PSM, is anyone experiencing this setting turning itself back on? I have turned it off twice today and every so often it turns back on which ends up turning my WiFi back off...
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Infamous_Cheez said:
For anyone who has already turned off WiFi PSM, is anyone experiencing this setting turning itself back on? I have turned it off twice today and every so often it turns back on which ends up turning my WiFi back off...
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Mine has once. Haven't checked it again.

Infamous_Cheez said:
For anyone who has already turned off WiFi PSM, is anyone experiencing this setting turning itself back on? I have turned it off twice today and every so often it turns back on which ends up turning my WiFi back off...
Sent from my SGH-T999 using Tapatalk 2
Click to expand...
Click to collapse
Question: are you rebooting your phone when this happens?
Cuz if you are that's normal on every reboot you have to go back and turn it off again.
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I was not rebooting the phone. I am currently trying a different rom to see if that solves anything.

Weird
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Well it still keeps happening. I switched from intrigue rom to freegs3. I'm currently using the phone at work and it happened right before my eyes while using Tapatalk... I had to turn off power saver mode yet again
Sent from my SGH-T999 using Tapatalk 2

would the method above work for me? since yesterday, my wifi kept turning on by itself. After I turned the wifi off for like a couple minutes then it'll turn on automatically again. I have the Keep Wifi on during sleep set as "only when plugged in" and it never happen to be before until yesterday. My power saving in the setting menu has always been off too. Please help! :crying::crying:

Install the app called "Wifi Fixer" app to the solve the issue.

Whatever Google did to cause a variety of wakelock problems, having a strong wifi signal seems to solve them. Apparently, wakelocks occur when there are unreliable connections to Google's servers.
Kal

AOKP internet problem!!? Please help!

Ever since last night my 4g/3g has been on and off.. And off more times then on.. It keeps saying "no interent connection" in the notification window. Retarded the phone 20 times. Deleted downloaded cache I even updated the rom this morning... This is so annoying. And its no my service because I used the CM10 and everything was working perfect. I go back to AOKP and no interent connection. It has bars at the top but nothing like "H" or "H+" next to it when its off.. Idk why this is happening. Everything was perfect. I was chilling last night at the bar trying upload some pictures and ever since then this problem started..

Maybe try updating your modem?
And be nice to your phone, don't retard it
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corythug said:
Maybe try updating your modem?
And be nice to your phone, don't retard it
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Oh no i wasn't talking about wifi. Sorry. I was talking about 4g. When I dont have access to wifi its giving me trouble.. Only on this rom. Its sad because this is my fav rom lol. But 4g/3g keeps shutting off idk why.

Are the bars your getting grey or blue
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ForcedZucchini said:
Are the bars your getting grey or blue
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grey

Have you tried settings- more - mobile network and see what is checked?
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liltitiz said:
Have you tried settings- more - mobile network and see what is checked?
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Click to collapse
only NFC is checked

king718 said:
only NFC is checked
Click to expand...
Click to collapse
No go into mobile network at the bottom of the page under nfc
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Just data enabled. It seems to be working now though. Also how can I reconnect my Gmail? For some reason all my contacts that are synced to Gmail isn't working. I have no contacts..
Thanks for the help!

Mine did the same. It would drop off the data network sort if speak. Toggle and it won't come back on. Call and text were fine. Data was gone
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Did you lose data signal after flashing a rom? Read this. It may help

I flash alot of roms on my galaxy s2 and about a week ago my data completely disappeared. My calls and texting worked but no internet whatsoever. I could use wifi but that's it. I found a quick fix that may work for you too.
I read that this is a known problem with the phone and T-Mobile will replace if under warranty but I'm not with T-Mobile so I'm assed out lol.
Ok here we go. Its very simple:
Menu, settings, wireless settings, toggle airplane mode repeatedly and rapidly till you see the E for edge. Stop to see if it comes up fully. If not reboot phone and try again.
Note: I rebooted twice before it came back on fully.
Hope this helps :thumbup:
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Bad.Fish said:
I flash alot of roms on my galaxy s2 and about a week ago my data completely disappeared. My calls and texting worked but no internet whatsoever. I could use wifi but that's it. I found a quick fix that may work for you too.
I read that this is a known problem with the phone and T-Mobile will replace if under warranty but I'm not with T-Mobile so I'm assed out lol.
Ok here we go. Its very simple:
Menu, settings, wireless settings, toggle airplane mode repeatedly and rapidly till you see the E for edge. Stop to see if it comes up fully. If not reboot phone and try again.
Note: I rebooted twice before it came back on fully.
Hope this helps :thumbup:
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Click to expand...
Click to collapse
Lol
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Bad.Fish said:
I flash alot of roms on my galaxy s2 and about a week ago my data completely disappeared. My calls and texting worked but no internet whatsoever. I could use wifi but that's it. I found a quick fix that may work for you too.
I read that this is a known problem with the phone and T-Mobile will replace if under warranty but I'm not with T-Mobile so I'm assed out lol.
Ok here we go. Its very simple:
Menu, settings, wireless settings, toggle airplane mode repeatedly and rapidly till you see the E for edge. Stop to see if it comes up fully. If not reboot phone and try again.
Note: I rebooted twice before it came back on fully.
Hope this helps :thumbup:
Sent from my SGH-T989 using xda premium
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Click to collapse
lol a reboot has always fixed it.

A reboot does not always fix I rebooted 20 times with no results. After I toggled is when I got results
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Thanks a mill!
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Just toggle data not airplane mode
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I tried data didn't work. Airplane did. I went 3 days without data before I figured this out
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I am looking for a longer term fix. Loosing data causes my google voice to hang up on calls for some reason... I can get it back on by toggling 2g, data sync, airplane mode etc, but I am looking for a long term fix.

Unfortunately the only long term fix is to send back to Samsung to be fixed and even that is not guaranteed.
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